Silencer for firearms



F. WILDNER July 17, 1923 S ILENCER FOR FIREARMS Filed March 25, 1922 Patented July 17, 1923.

UNITED STATES FRANZ WILDNER. OF BUSCHULLERSDORF, NEAR REICHENBERG, IN BOHEMIA, CZECHOSLOVAKIA.

SILENCER FOR FIREARMS.

Application filed March 25, 1922. Serial No. 546,865.

T 0 all 107mm if may concern:

Be it known that I. FRANZ \VILDNER. a citizen of and resident of Buschullersdorf, near Reichenberg. in Bohemia, Czechoslovakia. have invented certain new and useful Improvements in Silencers for Firearms, of which the following is a specification.

The present. invention relates to improvements in silencers for fire-arms. of that. known type which not only deadens the loud noise from the discharge of the shot but also renders fire and smoke invisible.

The improved device is to be fixed on the barrel muzzle of the fire-arm. and it essentially comprises a perforated external tube with closed ends and having a shorter internal perforated tube with closed front end therein and a coil spring intervening, between the front ends of said tubes, while trans-- versely to and at the inner front ends of said tubes there are provided double discs of different material to be passed by the projectile and adapted to close again the holes caused by the passage of the latter, holes being provided in the closed front ends of said tubes in alignment with the bore of the barrel of the fire-arm for a passage of the projectile. while the device is further fitted within with an aim finder consisting of a conical tube having its inner walls coated with a luminous matter.

The accompanying drawing shows two appropriate constructional forms of the subject matter of the present invention:

Figs. 1 and 2 are respectively a side view and an end view of one form.

Fig. 3 is a longitudinal section through the same. while Figs. 4 and 5 are similar views, to those in Figs. 1 and 2, of another form, andv Fig. 6 is a longitudinal section through the latter:

Figs. 7 and 8 show details.

The perforated external tube a is at its rear end closed by a cover I) which carries a socket 0, that can be passed upon the muzzle of the barrel (1 of a fire-arm and detachably attached thereto. for instance by means of a bayonet closure, for which purpose a rectangular slot 6, e engages over the sight-piece f of the barrel as shown in Fig. 7.

lVithin the tube a a shorter internal tube 9 is arranged, the walls of which are provided with a great number of small perforations. Said internal tube 9 carries at its rear end a ring 72. and at its front end a detachably attached cover 71, said ring and cover serving to hold the internal tube g in concentric position within the external tube a. A coil spring I in the front part of the tube a intervenes between said cover 11 and a cover Z, which is detachably attached to the front end of the tube (a by means of small screws m.

The internal tube 9 may consist of wire gauze. and the external tube a. may be fitted with an internal lining of asbestos, textile fabric. felt, or the like.

The inside of the cover 5 as well as of the cover Z is lined each with a double disc of thin pasteboard n and of thicker felt, textile fabric, asbestos, or the like material 0, which disc has the property to close again the hole caused by the passage of a projectile. Said discs n, 0 can be removed and renewed at any time, though this will become nepessary after a great number of shots on y.

The covers 71 and l are made of metal and each provided with a hole p for an unobstructed passage of the projectile therethrough. V In the construction shown in Figs. 1 to 3 inclusive, the socket c is eccentrically arranged on the external tube a so as to make the sight-piece f project above the latter tube and thus secure an unobstructed sightmg.

To ensure a permanent alignment of the hole in the cover 2' with the bore of the barrel d, the internal tube 9 is secured against twisting, for which purpose guide pins gare secured to the inner side of the tube a while in the ring h and in the cover 2' corresponding grooves or notches r are provided (Fig. 8).

In the construction shown in Figs. 4 to 6 inclusive, the socket c is concentrically arranged on the external tube awhile an aim finder consisting of a conical tube 8 is provided within the tubes a9 and mounted in corresponding holes in the covers Z, i, b, the tube 8 being put in position from the front end of the device and held therein by its frictional contact with said bearing-holes. Through said aim finder, the aim can be sharply and distinctly traced, because the visual faculty is concentrated to a small space. The holes in the covers 13, Z for the passage of the projectile are centrally located therein. This concentric arrangement of the tubes around the barrel results in a uniform distribution of the waves of sound and of the powder gases to all sides. F or shooting in the dark, the inside of the aim finder s is coated with a luminous matter such as radium, phosphorus, or the like, permitting an aiming just as during daytime.

To make the device as light as possible, its metal parts consist preferably of aluminium or the like light material.

lVhat I claim, is:

A silencer for fire-arms, comprising, incombination, a perforated external tube hav ing closed ends and adapted to be fixed with its rear end on the barrel muzzle of the firearm, a shorter internal perforated tube having a closed front end and concentrically arranged in said external tube, the closed front ends of said tubes having holes therein for the passage of the projectile, a coil spring intervening between the front ends of said tubes, transverse double discs of different materials at the inner front ends of said tubes to he passed by the projectile and adapted to close again the holes caused by the passage of the latter, means to prevent said internal'tubefrom twisting Within said external tube, and an aim finder within said tubes consisting of a conical tube having its inner walls coated with a luminous matter.

FRANZ WILDNER. 

